3rd & 4th will be determined by
1 - The point differential of the Semi-Final match. if tied:
2 - The overall point differential of the Prelim round for each team. if tied:
3 - A series of 1 v 1 (best of 5)

If 3rd and 4th want to play a full match we can discuss this, but I felt that most teams would not feel it to be worth the value (how much paint you'll shoot compared to the prizes offered). I'm trying to be realistic. If I'm over thinking it, let me know.